This page will link you to pages that explain the different types of
publications (sources) you can expect to encounter during your research.

Periodical databases can quickly and easily
provide access to full-text articles from many sources, but how can you tell if
these sources are appropriate and acceptable for your research? Use these links
to help you determine whether or not a source is popular or scholarly.

Each discipline has its own set of associated
publications, or "literature." Use this link to see a brief
overview of how disciplinary literatures are structured, and where different
types of publications fit in to the structure.